Non-Billable / Non-Specific Code
ICD-10-CM Q42 is the diagnosis code for Congenital absence, atresia and stenosis of large intestine. This code falls under the section "Other congenital malformations of the digestive system" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where Q42 sits in the ICD-10-CM classification helps ensure proper coding:
No, Q42 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
Q42 is the ICD-10-CM diagnosis code for "Congenital absence, atresia and stenosis of large intestine". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Q42 is located in Section Q38-Q45 — "Other congenital malformations of the digestive system" within Chapter 17 of the ICD-10-CM Tabular List.
Q42 has 6 sub-code(s) that provide more specific detail: Q42.0, Q42.1, Q42.2, Q42.3, Q42.8 and more.
Use Q42 when the patients documented diagnosis matches "Congenital absence, atresia and stenosis of large intestine" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Congenital absence, atresia and stenosis of large intestine is Q42.
No, Q42 is non-billable. Use a more specific sub-code for primary diagnosis billing.
Q42 is in Chapter 17 of the ICD-10-CM Tabular List.
Yes, Q42 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.